Schule ist toll, besonders in den Ferien!

Finally, vacation! As soon as school is out, Luisa and her family head to the Baltic Sea. Even Lakritze, Luisa's little black cat, gets to come along. She has become quite affectionate and doesn't run away anymore... well, usually. In fact, Lakritze sneaks out every evening for a secret adventure. But where does the little cat disappear to? And why is she suddenly so eager to catch mice? Detective Luisa is determined to solve the mystery. It's not easy, especially when she's constantly interrupted by her arch-nemesis...